Oh man! It looks like Aunt Petunia from Harry Potter is surrrriously getting in on some of the action!

Check out the latest promo for the fourth season of True Blood, which shows off some more of our beloved Vampire Pam, Sookie Stackhouse and Viking Vampire Eric potential seksi times, and the aforementioned actress Fiona Shaw, who joins this season as one serious bad-ass witch (above)!